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This paper concerns the robust transmission of physical header frames of the IEEE 802.11n wireless network standard over a noisy channel. The proposed receiver is based on an iterative decoding scheme using the turbo principle where two blocks are serially concatenated. The outer block provides soft input soft output estimates of the headers of the physical packets based on a MAP estimation, while...
We consider the design of Tomlinson-Harashima (TH) precoders for broadcast channels in the presence of channel uncertainty. For systems in which uplink-downlink reciprocity is used to obtain a channel estimate at the transmitter, we present a robust design based on a statistical model for the channel uncertainty. We provide a convex formulation of the design problem subject to two types of power constraints:...
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